2015
DOI: 10.11604/pamj.2015.21.65.6838
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Mélanome anorectal primitif

Abstract: Nous proposons une étude rétrospective réalisée au sein du département de gastro-entérologie et d'Oncologie du CHU Casablanca colligeant tous les cas des mélanomes ano-rectaux primitifs, sur une période de 15 ans (du 1997 au 2012). Notre série comportait 14 patients, 8 hommes et 6 femmes avec une moyenne d’âge de 60,5 ans. Les signes cliniques étaient dominés par les rectorragies et le syndrome rectal (plus de 80% des malades). L'aspect tumoral noirâtre à été noté chez la moitié des malades. L'examen endoscopi… Show more

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Cited by 2 publications
(4 citation statements)
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“…On proctologic examination, primary anorectal melanoma is almost often presents as an ulcerative vegetal tumor or a polypoid, pedicled lesion. The characteristic black colour of melanoma is present in our patient [4]. The diagnosis is histological based on the detection of melanin pigment within the tumourcells.…”
Section: Discussionmentioning
confidence: 65%
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“…On proctologic examination, primary anorectal melanoma is almost often presents as an ulcerative vegetal tumor or a polypoid, pedicled lesion. The characteristic black colour of melanoma is present in our patient [4]. The diagnosis is histological based on the detection of melanin pigment within the tumourcells.…”
Section: Discussionmentioning
confidence: 65%
“…From an etiopathogenic point of view, the most probable hypothesis is that of chronic irritation, given the exclusion of sun exposure in this location. The diagnosis of primary anorectal malignant melanoma can only be made in the absence of any synchronous localization (skin, retina), and the absence of a history of melanoma excision, whatever its location, which was the case in our patient [4]. Clinically, it is mainly manifested by rectorragies, anal pain, perianal mass, rectal syndrome and/or inguinal mass related to inguinal adenopathy [2].…”
Section: Discussionmentioning
confidence: 66%
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“…It develops at all age categories with the maximum frequency starting the 6th decade. 2 Melanocytes are in general absent in the rectum. However, both the presence of metaplasia's sites with melanocytes and the submucosal shift of a lesion initially formed in the anal canal can possibly explain the rare occurrence at rectal level.…”
Section: Introductionmentioning
confidence: 99%